26969490 has 64 divisors (see below), whose sum is σ = 73180800. Its totient is φ = 7065792.

The previous prime is 26969479. The next prime is 26969533. The reversal of 26969490 is 9496962.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15084 + ... + 16776.

It is an arithmetic number, because the mean of its divisors is an integer number (1143450).

Almost surely, 2^26969490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26969490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36590400).

26969490 is an abundant number, since it is smaller than the sum of its proper divisors (46211310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26969490 is a wasteful number, since it uses less digits than its factorization.

26969490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 26969490 is about 5193.2157667480. The cubic root of 26969490 is about 299.8869574099.

The spelling of 26969490 in words is "twenty-six million, nine hundred sixty-nine thousand, four hundred ninety".